# 画圆圈,正方形 
import turtle

f = turtle.Pen()
f.speed(100)
a = 100
b = 1
c = 0
while c < 360:
    if c%3==0:
        f.color('red')
    elif c%3==2:
        f.color('blue')
    else:
        f.color('yellow')
    f.circle(a)
    f.right(b)
    c += 1
turtle.mainloop()